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29230380 = 22325162391
BaseRepresentation
bin110111110000…
…0010100101100
32001000001112200
41233200110230
524440333010
62522301500
7503311524
oct157402454
961001480
1029230380
1115555243
129957890
1360958aa
143c4c684
152875cc0
hex1be052c

29230380 has 36 divisors (see below), whose sum is σ = 88666032. Its totient is φ = 7794720.

The previous prime is 29230337. The next prime is 29230393. The reversal of 29230380 is 8303292.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×292303802 = 1708830229888800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81016 + ... + 81375.

Almost surely, 229230380 is an apocalyptic number.

29230380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29230380 is an abundant number, since it is smaller than the sum of its proper divisors (59435652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29230380 is a wasteful number, since it uses less digits than its factorization.

29230380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162406 (or 162401 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 29230380 is about 5406.5127392803. The cubic root of 29230380 is about 308.0431012937.

The spelling of 29230380 in words is "twenty-nine million, two hundred thirty thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 162391 324782 487173 649564 811955 974346 1461519 1623910 1948692 2435865 2923038 3247820 4871730 5846076 7307595 9743460 14615190 29230380